How do probes work?

steph79 · August 19, 2010, 06:41

Hi, I wondered if someone could describe to me how probes for velocity measurements in OpenFOAM v1.7 work. Do they use linear interpolation with respect to the neighbouring cells or do they crudely use the values from the nearest neighbour?

Thanks.

HakikiCanakkaleli · October 17, 2013, 09:41

Hi,

I believe probes extract, say, the velocity from the nearest cell centre. Therefore, probes do not provide a field variable's magnitude for an arbitrary location in the domain by interpolating the neighbouring cell centre's.

August 19, 2010, 06:41	How do probes work?	#1
steph79 Member Join Date: Jul 2010 Posts: 37 Rep Power: 16	Hi, I wondered if someone could describe to me how probes for velocity measurements in OpenFOAM v1.7 work. Do they use linear interpolation with respect to the neighbouring cells or do they crudely use the values from the nearest neighbour? Thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
OpenFOAM case setup and work flow - what are you using?	Arnoldinho	OpenFOAM Pre-Processing	4	July 18, 2010 10:16
ATTENTION! Reliability problems in CFX 5.7	Joseph	CFX	14	April 20, 2010 16:45
problems with probes() function in chtMultiRegionFoam	Victor	OpenFOAM	0	November 25, 2009 16:08
cfx+Fortran cannot work with 2 CPUs on windows PC	lee	CFX	1	May 8, 2006 11:36
Why do the Plant library cases don't work?	Alumna	Phoenics	6	June 22, 2004 13:08

October 17, 2013, 09:41		#2
HakikiCanakkaleli Senior Member Canakkale Dardanelspor Join Date: Aug 2012 Posts: 135 Rep Power: 14	Hi, I believe probes extract, say, the velocity from the nearest cell centre. Therefore, probes do not provide a field variable's magnitude for an arbitrary location in the domain by interpolating the neighbouring cell centre's.